/*
 * Copyright (C) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

use crate::common::constants::{AuthType, ErrorCode};
use crate::log_e;
use crate::singleton_registry;
extern crate alloc;
use alloc::boxed::Box;
#[cfg(any(test, feature = "test-utils"))]
use mockall::automock;

pub trait AuthPolicy {
    fn auth_type(&self) -> AuthType;
    fn require_pin_before_enrollment(&self) -> bool;
    fn depends_on_pin(&self) -> bool;
    fn get_max_credential_number_per_user(&self) -> usize;
}

#[cfg_attr(any(test, feature = "test-utils"), automock)]
pub trait AuthPolicyManager {
    fn get_auth_policy(&self, auth_type: AuthType) -> Result<Box<dyn AuthPolicy>, ErrorCode>;
}

pub struct DummyAuthPolicyManager;

impl AuthPolicyManager for DummyAuthPolicyManager {
    fn get_auth_policy(&self, _auth_type: AuthType) -> Result<Box<dyn AuthPolicy>, ErrorCode> {
        log_e!("not implemented");
        Err(ErrorCode::GeneralError)
    }
}

singleton_registry!(
    AuthPolicyManagerRegistry,
    AuthPolicyManager,
    DummyAuthPolicyManager
);
